Abstract

Salivation and insulin secretion in response to the sight and smell of a palatable dinner of 14 non-obese subjects, who had not eaten for 17 h, were measured. There were significant increases in saliva and plasma insulin in response to the presentation of food, the increases in salivation correlating positively with indices of body weight ( W/H 2) and scores on the Herman and Polivy Scale of restrained versus unrestrained eating, but not with increases in insulin secretion. There were no changes in plasma glucose and glucagon over the time period examined. Interrelationships between these physiological changes and scores on other psychological tests, including the Stunkard and Messick Three Factor Scale and the Booth and Fuller Scale for emotional responsiveness, were also examined. Results are discussed in terms of possible extensions of these studies, and the significance of cephalic phase responses.

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Human appetite and body size control the roles of individual differences and food dependencies in human appetite and body size control processes.